overlay fixed logo position in player window would be controlled by the player displaying the video, premiere is not a 360 video player so not something that could be done in premiere or or other editors like Nuke or AE etc, none of those apps are for building a 360 video interactive web display
if you want to create such a 360 video player with fixed logo in corner or other overlay graphics, you would need to use something like krpano or forge js
IVRPA - The International Virtual Reality Photography Association is an international association of photographers who create and produce 360° Panoramas and other Virtual Reality Content including 360° Video, 360° Virtual Tours, Gigapixel Panoramas, and more.
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Professional and amateur and 360° VR photographers are encouraged to Join IVRPA and participate on this website.